It's sad how misinformed people are. Steroids are probably healthier than caffeine. Certainly better than cigs, alcohol and fast food. Tell them they are ignorant and then attack them for any and all unhealthy behaviors they indulge in. That should shut them the fuck up.
She'd have to be super spiteful to send the father of her kids to jail. But to be safe and avoid them having any leverage over you in the future, I strongly suggest you see a doctor and get TRT prescribed. This solves any and all legal issues with it and they can't say shit because it's your medicine. You B&C anyway so no big deal.
People saying to divorce because she found your stash... lol wtf? Maybe do it for other reasons but this should mostly blow over in a couple weeks. It did for me at least with the GF. Now she fucking wants me on test tren and proviron all the time lol. Silly girls.